1213326233121 has 32 divisors (see below), whose sum is σ = 1658727531648. Its totient is φ = 788657126400.

The previous prime is 1213326233089. The next prime is 1213326233173.

1213326233121 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 1213326233121 - 2⁵ = 1213326233089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1213326233921) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73826521 + ... + 73842953.

It is an arithmetic number, because the mean of its divisors is an integer number (51835235364).

Almost surely, 2^{1213326233121} is an apocalyptic number.

It is an amenable number.

1213326233121 is a deficient number, since it is larger than the sum of its proper divisors (445401298527).

1213326233121 is a wasteful number, since it uses less digits than its factorization.

1213326233121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20241.

The product of its digits is 7776, while the sum is 30.

The spelling of 1213326233121 in words is "one trillion, two hundred thirteen billion, three hundred twenty-six million, two hundred thirty-three thousand, one hundred twenty-one".